Computer was invented because “necessity is the mother of invention”. Man always searched fore a fast calculating device. it took a long time to invent the digital computer. A brief history behind the invention of computer is as follow.
Abacus
The first computing device was ABACUS. It was developed in 600 B.C. It was used toper form simple addition and subtraction. It consists of wooden beads. The beads could
Be moved easily .Calculations were performed by moving these beads properly
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